Conveyer structure



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I CONVEYER STRUCTURE Filed Sept. 20, 1944 INVENTOR. J/enzySieb PatentedDec. 4, 1945 ,UNITED STATES PATENT OFFICE CONVEYER STRUCTURE Henry Sieb,Hammond, Ind.

Application September 20, 1944, Serial No. 554,897

4 Claims.

In my prior Patent No. 2,169,114 there is disclosed 3' achine forapplying glue to the back edges of books that are still in the form ofs-ocalled sections that have been sewn together. Books are carriedthrough the machine in groups wherein the books stand on edge and sideby side. Each group of books is moved ahead by a rod or bar spanning thedistance between a pair of endless chains and contacting the rear edgesof the books. The books'of each group are pressed together during thegluing operation so. that the planes of division between them are notreadily discernible, requiring. considerable care on the part of theoperatorto separate the books in the same from each other.

The object of the present invention is to make it simple and easy toseparate the books in each of the aforesaid groups after they have beenglued.

A more specific. object of the invention is to i make it possible tocarry out the main purpose thereof by means of a simple attachment tothe machine of the aforesaid patent.

y The various features of novelty whereby my invention is characterizedwill hereinafter be point-' ed out with particularity in the claims; butfor a full understanding of my invention and of its various objects andadvantages, reference may be had to the following detailed descriptiontaken in connection with the accompanying drawing, wherein:

Figure 1 is a transverse section through the upper part of the machineof the aforesaid patent, provided with the new attachments of the mosthighly developed form and showing in broken lines three books beingcarried through the machine; Fig. 2 is a section on line 2-2 of Fig. 1;Fig. 3 is a front view of one of the blocks or shoes and a fragment ofthe bar or rod on which it is mounted when in use in the machine; andFig. 4 is asection on line 44 of Fig. 3.

In accordance with my invention I provide the transverse bars or rods ofthe machine with forwardly projecting parts, in spaced relation to eachother; some of the books in each group registering with these parts andbeing driven ahead thereby, while the remainder are located between theprojecting parts and are engaged by the bar as in the old machine. Thiscauses some of the books in each group to be offset lengthwise withrespect to the other books in that group; thereby giving to the group atoothed configuration at both the leading and the trailing ends, so thatthe operator can easily take hold of the ends of individual booksinstead of being required to hunt the planes of separation between thebooks.

- or rods I2.

Referring to the drawing, l is a horizontal bed or table on which thebooks to be glued rest, and

are adjustable from and toward each other by a suitable mechanismincluding a shaft 3 extending underneath the bed from one side to theother; the shaft having thereon right and left hand threads 4 and 5 withwhich nuts '6, 6 are engaged. Each nut has a stem 1 that extends upthrough a transverse slot 8 in the bed or table below the correspondingguide, and through a foot flange on that guide. A nut 9 on the upper endof each stem serves to clamp the corresponding guide in any positioninto which it may be adjusted. Each guide contains a channel In thatextends deeply into the same on the side facing the other guide. Theupper runs of two endless chains H, H run lengthwise of the guideswithin the channels; the chains being connected at intervals by crossbars closed in my aforesaid patent and are believed to require nofurther explanation.

In the preferred form of my invention there are blocks or shoes 13 whichcan be secured in any desired positions along the bars or rods and betaken off, when desired, without disturbing the latter. The reason forthis is that books are made in various thicknesses and each projection 0on the bars or rods should be just as long as the thickness of the bookwith which it is to engage. As many sets of blocks as there arethicknesses of books may be provided. Then, when books of a certainthickness are to be glued, the guides are set so as to provide room forthe number of books that are to pass through the machine as a group, andthen blocks or shoes of the proper length are secured upon each bar, thethickness of a book apart; thereby permitting a part of the books ofeach group to engage directly. with the adjacent bar, as in said patent,while the remainder enage the blocks or shoes. The blocks areconveniently U-shaped, so that they may he slipped on the bars from theside and be then held in place by set screws M or the like. Also, thebars are preferably square or rectangular in cross section in order thatthe blocks will be prevented from turning about them.

After the machine has been properly adjusted and the blocks applied tothe bars, the books may be fed into the machine in the usual way, thebooks in the paths of the blocks being engaged with the latter beforethe bar reaches the books in the spaces between the blocks. Consequentlysome of the books, shown in broken lines at A All the parts justdescribed are disin Figs. 1 and 2, are pushed a little ahead of theothers in the same group. This displacement, to produce a toothed effectat the front and rear ends of each group of books, need not be more thanabout three eighths of an inch, so that the blocks may be small andlight.

Sometimes, when special conditions are encountered, it is useful to haveblocks that are ject from one end flush with the front or work-.

ing face of the block; these tongues being so located that they mayproject into the channels in the guides when the blocks are placed .on abar near the guides. In preparing the machine the guides are adjusteduntil they are spaced apart a distance equal to the thickness of threebooks. Then two of the blocks are put on each bar, each with its tongueentered in the channel in one of the guides. If the thickness of a bookis equal to the length of the block proper, each block must be set closeto the adjacent guide, and the space between the blocks will be a blocklength. However, for thicker books the tongues extend only part way intothe channels and give the effect of longer blocks.

While I have illustrated and described with particularity only a singleform of my invention, I do not desire to be limited to the specificstructural details thus illustrated and described; but intend to coverall forms and arrangements that come within the definitions of myinvention constitut-ing the appended claims.

I claim: x

1. The combination with a conveyer for books that has a bar extendingacross the rear ends of a group of books to move them ahead, of blocksdetachably mounted on the bar in spaced relation to each other to engagesome of the books while the remainder contact the bar in the spacesbetween the blocks and thus cause the books to be displaced lengthwiseofeach other..

2. The combination with a book conveying apparatus in which there areparallel guides each having in the side facing toward the other a deepchannel extending lengthwise thereof and a cross bar extending at itsends into the channels where they are attached to conveyors running inthe channels, and in which the guides are adjustable from and towardeach other, of two blocks adapted to be adjiistably secured to the barin spaced relation to each other,'said blocks having faces to engage therear edges of books between the guides and hold them at some distancefrom the bar, and each block having in the plane of the book-engagingface a tongue that extends into the adjacent channel, whereby of threebooks two will be driven by the blocks and be slightly in the lead ofthe third book in the space between the blocks and driven directly bythe bar. V

3. The combination with a conveyer for books that has a bar-in positionto extend acrossthe rear ends of a group of books, placed side by side,to move them ahead, of blocks adapted "to be attached to the bar in anyone of a. plurality of spaced relations to each other along the latter,whereby books engaged with blocks are displaced lengthwise of thedirection of movement thereof by the conveyer relative to a book engageddie rectly with the bar, the width'of a space between blocks being equalto the thickness of" a book that is to enter it.

4. The combination with a book conveying, apparatus that has a,- bar toextend across the rear of a group of books, placed side by side, 'tomove them, and guides, adjustable from and, toward each other, betweenwhich the books must pass, of two'- blocks adapted to be attaehed tothebar at any desired points alon the latter, each block having a tongueprojecting laterally in theplel fi ofthe book-engaging face, and the.guides being constructed to permit the tongues on the blocks adjacentthereto to extend across the bookren-r gaging faces of the guides.

